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Implement drawing the list of themes

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This commit is contained in:
Kovid Goyal 2021-08-04 21:56:33 +05:30
parent e01cd057e8
commit 9b7899780b
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 40 additions and 5 deletions
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45
kittens/themes/main.py
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@ -74,6 +74,17 @@ class ThemesList:
def __len__(self) -> int:
return len(self.themes)
def next(self, delta: int = 1, allow_wrapping: bool = True) -> bool:
if not self:
return False
idx = self.current_idx + delta
if not allow_wrapping and (idx < 0 or idx >= len(self)):
return False
while idx < 0:
idx += len(self)
self.current_idx = idx % len(self)
return True
def update_themes(self, themes: Themes) -> None:
self.themes = self.all_themes = themes
if self.current_search:
@ -91,16 +102,14 @@ class ThemesList:
self.current_search = search
self.update_themes(self.all_themes)
def lines(self, num_rows: int) -> Iterator[str]:
def lines(self, num_rows: int) -> Iterator[Tuple[str, int, bool]]:
if num_rows < 1:
return
before_num = min(self.current_idx, num_rows - 1)
start = self.current_idx - before_num
for i in range(start, min(start + num_rows, len(self.display_strings))):
line = self.display_strings[i]
if i == self.current_idx:
line = styled(line, reverse=True)
yield line
yield line, self.widths[i], i == self.current_idx
@property
def current_theme(self) -> Theme:
@ -227,13 +236,39 @@ class ThemesHandler(Handler):
def draw_browsing_screen(self) -> None:
self.draw_tab_bar()
num_rows = self.screen_size.rows - 2
mw = self.themes_list.max_width + 1
for line, width, is_current in self.themes_list.lines(num_rows):
num_rows -= 1
self.cmd.styled('>' if is_current else ' ', fg='green')
self.cmd.styled(line, bold=is_current, fg='green' if is_current else None)
self.cmd.move_cursor_by(mw - width, 'right')
self.print('║')
def on_browsing_key_event(self, key_event: KeyEventType, in_bracketed_paste: bool = False) -> None:
if key_event.matches('esc'):
self.quit_loop(0)
return
for cat in 'all dark light recent'.split():
if key_event.matches(cat[0]):
if key_event.matches(cat[0]) or key_event.matches(f'alt+{cat[0]}'):
self.current_category = cat
self.redraw_after_category_change()
return
if key_event.matches('j') or key_event.matches('down'):
return self.next(delta=1)
if key_event.matches('k') or key_event.matches('up'):
return self.next(delta=-1)
if key_event.matches('page_down'):
return self.next(delta=self.screen_size.rows - 3, allow_wrapping=False)
if key_event.matches('page_up'):
return self.next(delta=3 - self.screen_size.rows, allow_wrapping=False)
def next(self, delta: int = 1, allow_wrapping: bool = True) -> None:
if self.themes_list.next(delta, allow_wrapping):
self.set_colors_to_current_theme()
self.draw_screen()
else:
self.cmd.bell()
# }}}
def on_key_event(self, key_event: KeyEventType, in_bracketed_paste: bool = False) -> None: